Intensive traffic of people with occasional traffic of light equipment) (hotel entrance hall or commercial building, secondary corridors of shopping mall, industrial kitchen, schools, hospitals, museums, neighborhood market, etc.).Entrance hall of hotel or ed. commercial, secondary corridors shopping mall, industrial kitchen, schools, hospitals, museums, neighborhood market, etc.

Light traffic of people; Private area in residences and condominiums.

External walls and facades; Some FA products can also be used on floors, so they can have two acronyms, eg FA-CL.